Method and apparatus for balloon expandable stent-graft delivery
US5522882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Oct 21, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/9534
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent-graft delivery system which includes a catheter, an expandable balloon having non-tapered ends positioned near the distal end of the catheter, a stent circumferentially positioned around a center of the balloon, and a graft circumferentially positioned around the stent. The balloon configuration comprising non-tapered ends may be achieved by 1) preforming the balloon to the desired geometry which comprises substantially non-tapered ends; 2) positioning a non-compliant sheath over each of the ends of an existing balloon having tapered ends, or 3) invertedly attaching the first and second ends of a compliant tubular member to the catheter to form the desired balloon configuration. The desired balloon configuration is a balloon geometry which uniformly conforms to the geometry of the stent-graft assembly. A method for introducing the stent-graft delivery system into a blood vessel are also disclosed. The method includes inserting the stent-graft delivery system into the blood vessel, guiding the stent-graft assembly to the desired site, inflating the balloon of the balloon catheter, deflating the balloon, and withdrawing the catheter and expandable balloon. The stent-graft del…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.